Plastic classification of plastic mold injection molding

According to the molecular structure and characteristics of synthetic resins, plastic molding size it is divided into thermoplastics and thermosetting plastics.


Thermoplastics: The molecular structure of synthetic resins in these types of plastics is linear or branched.


Thermoset Plastics: The molecular structure of the resin in this type of plastic is ultimately a bulk structure. It has a linear structure at the beginning of heating. Therefore, it has plasticity and solubility, and can be molded into plastic parts of a certain shape. When the heating is continued, chemical bonds (ie cross-linking) are formed between the main chains of the linear molecules, and the molecules become network-like structures. It does not melt and does not melt, and the shape of the plastic part is fixed and will not change.



like：

Dimensions of plastic parts and their accuracy 


What are the factors that affect the size of plastic molding


Solution to dimensional deviation in plastic molding 


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